EP3564536A1 - Water-cooling head - Google Patents
Water-cooling head Download PDFInfo
- Publication number
- EP3564536A1 EP3564536A1 EP19172522.5A EP19172522A EP3564536A1 EP 3564536 A1 EP3564536 A1 EP 3564536A1 EP 19172522 A EP19172522 A EP 19172522A EP 3564536 A1 EP3564536 A1 EP 3564536A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- working medium
- space
- water
- impeller
- cooling head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 68
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 11
- 230000001808 coupling effect Effects 0.000 claims description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/5893—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps heat insulation or conduction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/04—Helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0246—Arrangements for connecting header boxes with flow lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D2001/0253—Particular components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/08—Fluid driving means, e.g. pumps, fans
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20263—Heat dissipaters releasing heat from coolant
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
Abstract
Description
- This application claims priority to
U.S. Provisional Patent Application No. 62/666,733 filed March 4, 2018 - The present invention relates to a heat dissipation module, and more particularly to a water-cooling head.
- Nowadays, a water-cooling head with a built-in pump has been introduced into the market. However, it is difficult to flow the working medium by using the impeller of the pump only. For stably transferring the working medium along a one-direction circular loop, the casing or the inner structure of the water-cooling head is equipped with plural guiding structures for assisting the impeller of the pump. For example, in
US Patent No. 8245764 , an impeller cover, an intermediate member and the connected passages are used as the guiding structures of the water-cooling head to separate the inner portion of the water-cooling head into two independent chambers. Consequently, the working medium can be stably transferred along the one-direction circular loop. However, too many guiding structures may increase the structural complexity of the water-cooling head, occupy the inner space of the water-cooling head and increase the fabricating cost. Moreover, since the inner space of the water-cooling head is largely occupied by the guiding structures, the overall height of the water-cooling head cannot be reduced. - Therefore, there is a need of providing a water-cooling head with the simplified constituents. Consequently, only the inherent structure of the impeller of the pump is able to guide the working medium along the one-direction circular loop in order to meet the requirements of the industries.
- For solving the drawbacks of the conventional technologies, the present invention provides a water-cooling head. The structure of an impeller of the water-cooling head is specially designed to inhale and guide the working medium within an active space to flow. Consequently, the internal structure of the water-cooling head is simplified, the volume of the water-cooling head is reduced, and the heat dissipating performance of the water-cooling head is enhanced.
- In accordance with an aspect of the present invention, there is provided a water-cooling head. The water-cooling head includes a casing, a base, an input channel, an output channel and a pump. An active space is defined by the base and the casing collaboratively. A working medium is filled in the active space. The heat absorbed by the base is transferred to the working medium. The input channel is in communication with the active space. After the working medium is cooled, the working medium is introduced into the active space through the input channel. The output channel is in communication with the active space. After the working medium absorbs the heat, the working medium is outputted from the active space through the output channel. The pump is installed on the casing, and includes an impeller. The impeller is disposed within the active space and located near the output channel. The impeller is driven to guide the working medium to be outputted from the active space through the output channel. The impeller includes a seat part and a hollow part.
- In an embodiment, the active space is divided into a heat-absorbing space and a drainage space by the seat part, and the working medium within the heat-absorbing space and the drainage space undergoes a fluidly coupling effect through the hollow part.
- In an embodiment, the impeller further includes an upper wall. The upper wall and the seat part are separated from each other. Moreover, plural partition walls are connected between the upper wall and the seat part. The drainage space is divided into plural drainage chambers by the plural partition walls.
- While the working medium is transferred upwardly through the hollow part, the working medium is contacted with the upper wall and then the working medium is diverted to the drainage chambers.
- In an embodiment, the impeller further includes a raised structure, which is protruded from a junction between the hollow part and the seat part in a direction toward the base. The working medium from the heat-absorbing space is guided by the raised structure so as to be collected and transferred to the drainage space.
- In an embodiment, a pressurizing structure is formed on an inner surface of the raised structure.
- In an embodiment, the pressurizing structure is a helical structure or a vortex structure.
- In an embodiment, the seat part further includes a spoiler structure. The spoiler structure is formed on a bottom surface of the seat part and protruded in a direction toward the base.
- In an embodiment, the spoiler structure includes plural centrifugal-type blades.
- In an embodiment, the impeller further includes a bushing, and the bushing is sheathed around a shaft, so that the impeller is rotatable about the shaft.
- In an embodiment, the shaft is installed on a fixing element, and the fixing element is installed on the base.
- In an embodiment, the bushing and the seat part are connected with each other through plural ribs.
- In an embodiment, a pressurizing structure is formed on a surface of a portion of the bushing within the active space.
- In an embodiment, the pressurizing structure is a helical structure or a vortex structure.
- In an embodiment, the hollow part is located near the bushing.
- In an embodiment, an outer side of the base has a heat-absorbing surface, and a thermal conduction structure is disposed on an inner side of the base. The heat-absorbing surface is in contact with a heat source to absorb the heat. The heat is transferred to the working medium through the thermal conduction structure.
- In an embodiment, the input channel is located near the thermal conduction structure. When the cooled working medium is moved across the thermal conduction structure, the cooled working medium absorbs the heat from the thermal conduction structure.
- In an embodiment, he water-cooling head is connected with a heat exchanger. After the working medium is outputted from the output channel, the working medium is cooled down by the heat exchanger and then introduced into the active space through the input channel.
- In accordance with another aspect of the present invention, there is provided a water-cooling head. The water-cooling head includes an active space and an impeller. The active space includes a heat-absorbing space and a drainage space. A working medium is filled in the active space. The impeller is disposed within the active space, and includes a seat part and a hollow part. The active space is divided into the heat-absorbing space and the drainage space by the seat part. The working medium within the heat-absorbing space and the drainage space undergoes a fluidly coupling effect through the hollow part.
- In an embodiment, the water-cooling head further includes an input channel and an output channel. The input channel in communication with the heat-absorbing space. The output channel is in communication with the drainage space.
- In an embodiment, the impeller further includes an upper wall. The upper wall and the seat part are separated from each other. Moreover, plural partition walls are connected between the upper wall and the seat part. The drainage space is divided into plural drainage chambers by the plural partition walls. While the working medium is transferred upwardly through the hollow part, the working medium is contacted with the upper wall and then the working medium is diverted to the drainage chambers.
- In an embodiment, the impeller further includes a raised structure, which is protruded from a junction between the hollow part and the seat part in a direction toward the base. The working medium from the heat-absorbing space is guided by the raised structure so as to be collected and transferred to the drainage space.
- In an embodiment, a pressurizing structure is formed on an inner surface of the raised structure.
- In an embodiment, the pressurizing structure is a helical structure or a vortex structure.
- In an embodiment, the impeller further includes a bushing, and the bushing is sheathed around a shaft, so that the impeller is rotatable about the shaft. The hollow part is located near the bushing.
- In an embodiment, the seat part further includes a spoiler structure. The spoiler structure is formed on a bottom surface of the seat part and protruded in a direction facing the base.
- In an embodiment, the spoiler structure includes plural centrifugal-type blades.
- From the above descriptions, the structure of the impeller of the water-cooling head is specially designed to inhale and guide the working medium within an active space to flow. Consequently, the internal structure of the water-cooling head is simplified, the volume of the water-cooling head is reduced, and the heat dissipating performance of the water-cooling head is enhanced.
- The above objects and advantages of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which:
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FIG. 1A is a schematic perspective view illustrating a water-cooling head according to an embodiment of the present invention; -
FIG. 1B is a schematic perspective view illustrating the water-cooling head according to the embodiment of the present invention and taken along another viewpoint; -
FIG. 2 is a schematic cross-sectional view illustrating the water-cooling head ofFIG. 1A and taken along theline 2a-2a; -
FIG. 3 is a schematic enlarged view illustrating a portion of the water-cooling head ofFIG. 2 ; -
FIG. 4A is a schematic perspective view illustrating the impeller, the shaft, the fixing element and the base within the water-cooling head according to the embodiment of the present invention; -
FIG. 4B is a schematic exploded view illustrating the impeller, the shaft, the fixing element and the base within the water-cooling head according to the embodiment of the present invention; -
FIG. 5 is a schematic side view illustrating the path of the working medium inside the water-cooling head inhaled into the impeller through the input channel and the thermal conduction structure according to the embodiment of the present invention; -
FIG. 6 is a schematic top view illustrating the path of the working medium inside the water-cooling head inhaled into the impeller through the input channel and the thermal conduction structure according to the embodiment of the present invention; -
FIG. 7 is a schematic side view illustrating the path of the working medium inside the water-cooling head transferred from the thermal conduction structure to the output channel through the impeller according to the embodiment of the present invention; -
FIGS. 8A to 8D are schematic perspective views illustrating the impeller that are taken along different viewpoints; -
FIG. 9A is a schematic perspective view of the impeller of the water-cooling head according to the embodiment of the present invention; -
FIG. 9B is a schematic cutaway view of the impeller as shown inFIG. 9A ; -
FIG. 9C is a schematic perspective view illustrating a variant example of the impeller, in which a helical structure is formed on the surface of the bushing of the impeller; and -
FIG. 9D is a schematic perspective view illustrating another variant example of the impeller, in which a helical structure is formed on the inner surface of the raised structure of the impeller. - The present invention provides a water-cooling head with a built-in pump. Please refer to
FIGS. 1A ,1B ,2 and3 . The water-coolinghead 1 comprises acasing 2, abase 3 and apump 4. Thecasing 2 and thebase 3 are combined together through a screwing means or any other appropriate fixing means. Consequently, anactive space 5 for allowing a working medium to go through is defined by thecasing 2 and thebase 3 collaboratively. After the working medium is filled into theactive space 5 by the user or the manufacturer, the heat dissipating function of the water-coolinghead 1 is achieved. - The
casing 2 comprises aninput channel 21 and anoutput channel 22. Theinput channel 21 is in communication with theactive space 5. The cooled working medium is introduced into theactive space 5 through theinput channel 21. Theoutput channel 22 is also in communication with theactive space 5. The heated working medium is outputted from theactive space 5 through theoutput channel 22. In an embodiment, aninput connector 23 and anoutput connector 24 are externally extended or installed on theinput channel 21 and theoutput channel 22, respectively. Theinput connector 23 and theoutput connector 24 are vertically arranged or horizontally arranged. The arrangements of theinput connector 23 and theoutput connector 24 are not restricted as long as they are allowed to be connected with other heat exchangers (e.g., water-cooling radiators) or pipes. - The outer side of the
base 3 has a heat-absorbingsurface 31. Athermal conduction structure 32 is disposed or formed on the inner side of thebase 3. When the heat-absorbingsurface 31 is in contact with a heat source, the heat of the heat source is absorbed by the heat-absorbingsurface 31 and transferred to thethermal conduction structure 32. Since thethermal conduction structure 32 is in contact with the working medium (not shown), the heat is transferred from thethermal conduction structure 32 to the working medium. Thethermal conduction structure 32 comprises skived fins, pin fins, straight fins or any other appropriate fins with irregular shapes. The types of the fins of thethermal conduction structure 32 are not restricted as long as the contact area between the fins and the working medium is increased to facilitate transferring the heat to the working medium. After thecasing 2 and thebase 3 are combined together through a screwing means or any other appropriate fixing means, theactive space 5 for allowing the working medium to go through is defined. - Please refer to
FIGS. 2 and3 . Thepump 4 is disposed within the water-coolinghead 1 and installed on thecasing 2. Thepump 4 comprises acircuit board 41, a firstmagnetic element 42, a secondmagnetic element 43 and animpeller 44. Thecircuit board 41 and the firstmagnetic element 42 are located outside thecasing 2. The secondmagnetic element 43 and theimpeller 44 are combined together and installed within thecasing 2. That is, the combination of the secondmagnetic element 43 and theimpeller 44 is disposed within theactive space 5. The firstmagnetic element 42 is a silicon steel plate or a magnet. The secondmagnetic element 43 is a magnet. According to the interaction between thecircuit board 41, the firstmagnetic element 42 and the secondmagnetic element 43, theimpeller 44 is driven to guide the movement of the working medium. In addition, the water-coolinghead 1 further comprises ashaft 6 and a fixingelement 7. The fixingelement 7 is used for installing theshaft 6. Consequently, theimpeller 44 is sheathed around theshaft 6 and rotated about theshaft 6. With the assistance of the fixingelement 7, theimpeller 44 is not deviated or detached. After the water-coolinghead 1 is assembled, the fixingelement 7 is installed on thebase 3. For example, the fixingelement 7 is abutted against thethermal conduction structure 32 or coupled with thethermal conduction structure 32. - Please refer to
FIGS. 2 ,3 ,4A ,4B ,5 ,6 and7 andFIGS. 8A-8D .FIG. 3 is a schematic enlarged view illustrating a portion of the water-cooling head ofFIG. 2 . Especially, the relationships between theimpeller 44, theshaft 6, the fixingelement 7, thebase 3 and associated components inside the water-coolinghead 1 are shown in the perspective view ofFIG. 4A and the exploded view ofFIG. 4B . As mentioned above, theimpeller 44 within the water-coolinghead 1 is stably rotated through theshaft 6 and the fixingelement 7. In addition, theimpeller 44 further provides a guiding function. After the working medium is introduced into theactive space 5 through theinput channel 21 to absorb the heat, theimpeller 44 has the function of guiding the working medium to be smoothly outputted from theoutput channel 22. - For achieving the above function, the
impeller 44 is disposed within theactive space 5 and located near theoutput channel 22. Consequently, the working medium can be quickly guided to theoutput channel 22 and outputted from theactive space 5. Theimpeller 44 mainly comprises aseat part 442 and ahollow part 446. Theactive space 5 is divided into a heat-absorbingspace 51 and adrainage space 52 by theseat part 442. The working medium within the heat-absorbingspace 51 and thedrainage space 52 undergoes a fluidly coupling effect through thehollow part 446. Consequently, the working medium can be transferred from the heat-absorbingspace 51 to thedrainage space 52. - The
impeller 44 further comprises anupper wall 441. Theupper wall 441 and theseat part 442 are separated from each other. In addition,plural partition walls 443 are connected between theupper wall 441 and theseat part 442. Thedrainage space 52 is divided intoplural drainage chambers 445 by theplural partition walls 443. While the working medium is transferred upwardly from the heat-absorbingspace 51 to thedrainage space 52 through thehollow part 446, the working medium is contacted with theupper wall 441 and then diverted to thedrainage chambers 445. In other words, theupper wall 441 in this embodiment is a guiding mechanism that is able to change the flowing direction. - Please refer to
FIGS. 4A ,4B and8D . Theimpeller 44 further comprises abushing 444. Thebushing 444 is sheathed around theshaft 6. Consequently, theimpeller 44 can be rotated about theshaft 6. Moreover, thebushing 444 and theseat part 442 are connected with each other throughplural ribs 449. Theribs 449 are helpful to increase the structural strength. In addition, theplural drainage chambers 445 are defined by theribs 449,seat part 442, thepartition walls 443 and theupper wall 441 collaboratively. - Please refer to
FIGS. 3 ,5 ,8D and9B . In this embodiment, thehollow part 446 of theimpeller 44 is located near thebushing 444 or arranged around thebushing 444. Consequently, the working medium from the heat-absorbingspace 51 is collected and transferred through thehollow part 446 and upwardly attracted to thedrainage space 52. - After the rotation of the
impeller 44 is started, the working medium is attracted from the heat-absorbingspace 51 to thedrainage chambers 445, which are disposed within thedrainage space 52. Moreover, as thedrainage chambers 445 are rotated and moved across theoutput channel 22, the working medium is pushed into theoutput channel 22 and ejected out of the water-coolinghead 1 in response to the centrifugal force. - In this embodiment, the
upper wall 441 and theseat part 442 of theimpeller 44 are perpendicular to the shaft 6 (at 90 degrees). In some other embodiments, theupper wall 441 and theseat part 442 are not perpendicular to theshaft 6. Alternatively, the upper wall and the seat part are spirally arranged. Similarly, the working medium can also be inhaled into thedrainage chambers 445. - Please refer to
FIGS. 3 ,5 and7 . In this embodiment, a raised structure 447 (i.e., a ring-shaped raised structure) is downwardly protruded from a junction between theseat part 442 and thehollow part 446 of theimpeller 44 in the direction toward thebase 3. The working medium from thehollow part 446 of theimpeller 44 is guided upwardly by the raisedstructure 447 and thus inhaled into thedrainage chambers 445. Consequently, the working medium from the heat-absorbingspace 51 is collected and transferred to thedrainage space 52. - Please refer to
FIGS. 4A ,4B and6 . The water-cooling head of the present invention is further equipped with a flow-guiding structure for guiding the working medium. For example, arear side 32B of thethermal conduction structure 32 has an arc-shaped profile. When the working medium is transferred to thethermal conduction structure 32 and before the working medium is inhaled by theimpeller 44, the flow-guiding structure facilitates the working medium to flow to the position under theimpeller 44 along the arc-shaped channel. Then, the working medium is upwardly inhaled by thehollow part 446 of theimpeller 44. - In
FIGS. 4A ,4B ,5 and7 , the flowing direction of the working medium guided by the water-cooling head with the built-in pump is shown from different viewpoints and cross-sectional views. Please refer toFIG. 5 . After the working medium is introduced into theactive space 5 through theinput channel 21, the working medium is transferred across thethermal conduction structure 32 to absorb the heat. Then, the working medium is inhaled by thehollow part 446 of theimpeller 44 and transferred upwardly to thedrainage chambers 445 between theupper wall 441 and theseat part 442. As can be seen in the top view ofFIG. 6 , the working medium is introduced into theinput channel 21, moved from a front side 322A of thethermal conduction structure 32 to the rear side 322B of thethermal conduction structure 32, and inhaled into thedrainage chambers 445 within thedrainage space 52 through the position under thehollow part 446 of theimpeller 44. When thedrainage chambers 445 is rotated at an angle and contacted with theoutput channel 22, the working medium is correspondingly outputted or pulled out. The path of ejecting the working medium from thedrainage chambers 445 in the direction toward theoutput channel 22 can be seen in the side view ofFIG. 7 . - Please refer to
FIG. 6 . When the arranging directions of theinput connector 23 and theoutput connector 24 and the heat absorbing efficiency of the working medium are taken into consideration, thethermal conduction structure 32 and theimpeller 44 are not coaxial. That is, thethermal conduction structure 32 and theimpeller 44 are in an eccentric arrangement. Consequently, the heat transfer efficiency is enhanced. - Please refer to
FIGS. 8B and 8D . In this embodiment, the water-coolinghead 1 is further equipped with aspoiler structure 448. Thespoiler structure 448 is formed on a bottom surface of theseat part 442 and protruded in the direction toward the heat-absorbingspace 51. As shown inFIGS. 8B and 8D , thespoiler structure 448 comprises plural centrifugal-type blades. It is noted that the example of the spoiler structure is not restricted and may be varied according to the practical requirements. -
FIGS. 9A and 9B are schematic perspective view and cutaway view of the impeller of the water-cooling head according to the embodiment of the present invention. After the working medium is inhaled through thehollow part 446 of theimpeller 44 and contacted with theupper wall 441, the working medium is diverted to thedrainage chambers 445. The associated structures are shown in the drawings. - In the above embodiments, the portion of the
bushing 444 within theactive space 5 has no additional structure on the surface thereof. It is noted that numerous modifications and alterations may be made while retaining the teachings of the invention. For example, inFIG. 9C , a pressurizing structure such as ahelical structure 4441 or a vortex structure (not shown) is formed on the surface of thebushing 444. Due to the pressuring structure, the working medium under theimpeller 44 can be upwardly and rotatably inhaled into thedrainage chambers 445. Consequently, the capability ofimpeller 44 to inhale the working medium is enhanced. - The perspective views of two examples of the impeller are shown in
FIGS. 8B and9D . In the impeller ofFIG. 8D , the inner surface of the raisedstructure 447 is a flat surface without any additional structure. In the variant example ofFIG. 9D , a pressurizing structure such as ahelical structure 4471 or a vortex structure (not shown) is formed on the inner surface of the raised structure 447 (i.e., the surface facing the bushing). Due to the pressuring structure, the working medium under theimpeller 44 can be upwardly and rotatably inhaled into thedrainage chambers 445. Consequently, the capability ofimpeller 44 to inhale the working medium is enhanced. - While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all modifications and similar structures.
Claims (14)
- A water-cooling head (1), characterized by comprising:a casing (2);a base (3), wherein an active space (5) is defined by the base (3) and the casing (2) collaboratively, a working medium is filled in the active space (5), and a heat absorbed by the base (3) is transferred to the working medium;an input channel (21) in communication with the active space (5), wherein after the working medium is cooled, the working medium is introduced into the active space (5) through the input channel (21);an output channel (22) in communication with the active space (5), wherein after the working medium absorbs the heat, the working medium is outputted from the active space (5) through the output channel (22); anda pump (4) installed on the casing (2), and comprising an impeller (44), wherein the impeller (44) is disposed within the active space (5) and located near the output channel (22), and the impeller (44) is driven to guide the working medium to be outputted from the active space (5) through the output channel (22), wherein the impeller (44) comprises a seat part (442) and a hollow part (446).
- The water-cooling head (1) according to claim 1, characterized in that the active space (5) is divided into a heat-absorbing space (51) and a drainage space (52) by the seat part (442), and the working medium within the heat-absorbing space (51) and the drainage space (52) undergoes a fluidly coupling effect through the hollow part (446).
- The water-cooling head (1) according to claim 2, characterized in that the impeller (44) further comprises an upper wall (441), wherein the upper wall (441) and the seat part (442) are separated from each other, plural partition walls (443) are connected between the upper wall (441) and the seat part (442), and the drainage space (52) is divided into plural drainage chambers (445) by the plural partition walls (443), or wherein while the working medium is transferred upwardly through the hollow part (446), the working medium is contacted with the upper wall (441) and then the working medium is diverted to the drainage chambers (445).
- The water-cooling head (1) according to claim 1, characterized in that the impeller (44) further comprises a bushing (444), and the bushing (444) is sheathed around a shaft (6), so that the impeller (44) is rotatable about the shaft (6).
- The water-cooling head (1) according to claim 4, characterized in that the shaft (6) is installed on a fixing element (7), and the fixing element (7) is installed on the base (3).
- The water-cooling head (1) according to claim 4, characterized in that the bushing (444) and the seat part (442) are connected with each other through plural ribs (449).
- The water-cooling head (1) according to claim 4, characterized in that a pressurizing structure is formed on a surface of a portion of the bushing (444) within the active space (5), or wherein the pressurizing structure is a helical structure (4441, 4471) or a vortex structure.
- The water-cooling head (1) according to claim 4, characterized in that the hollow part (446) is located near the bushing (444).
- The water-cooling head (1) according to claim 1, characterized in that an outer side of the base (3) has a heat-absorbing surface (31), and a thermal conduction structure (32) is disposed on an inner side of the base (3), wherein the heat-absorbing surface (31) is in contact with a heat source to absorb the heat, and the heat is transferred to the working medium through the thermal conduction structure (32), or wherein the input channel (21) is located near the thermal conduction structure (32), wherein when the cooled working medium is moved across the thermal conduction structure (32), the cooled working medium absorbs the heat from the thermal conduction structure (32).
- The water-cooling head (1) according to claim 1, characterized in that the water-cooling head (1) is connected with a heat exchanger, wherein after the working medium is outputted from the output channel (22), the working medium is cooled down by the heat exchanger and then introduced into the active space (5) through the input channel (21).
- A water-cooling head (1), characterized by comprising:an active space (5) comprising a heat-absorbing space (51) and a drainage space (52), wherein a working medium is filled in the active space (5); andan impeller (44) disposed within the active space (5), and comprising a seat part (442) and a hollow part (446), wherein the active space (5) is divided into the heat-absorbing space (51) and the drainage space (52) by the seat part (442), and the working medium within the heat-absorbing space (51) and the drainage space (52) undergoes a fluidly coupling effect through the hollow part (446).
- The water-cooling head (1) according to claim 11, characterized in that the water-cooling head (1) further comprises an input channel (21) and an output channel (22), wherein the input channel (21) is in communication with the heat-absorbing space (51), and the output channel (22) is in communication with the drainage space (52).
- The water-cooling head (1) according to claim 11, characterized in that the impeller (44) further comprises an upper wall (441), wherein the upper wall (441) and the seat part (442) are separated from each other, plural partition walls (443) are connected between the upper wall (441) and the seat part (442), and the drainage space (52) is divided into plural drainage chambers (445) by the plural partition walls (443), wherein while the working medium is transferred upwardly through the hollow part (446), the working medium is contacted with the upper wall (441) and then the working medium is diverted to the drainage chambers (445).
- The water-cooling head (1) according to claim 11, characterized in that the impeller (44) further comprises a bushing (444), and the bushing (444) is sheathed around a shaft (6), so that the impeller (44) is rotatable about the shaft (6), wherein the hollow part (446) is located near the bushing (444).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US201862666733P | 2018-05-04 | 2018-05-04 | |
TW107127123A TWI670462B (en) | 2018-05-04 | 2018-08-03 | Cold plate |
Publications (2)
Publication Number | Publication Date |
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EP3564536A1 true EP3564536A1 (en) | 2019-11-06 |
EP3564536B1 EP3564536B1 (en) | 2023-01-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19172522.5A Active EP3564536B1 (en) | 2018-05-04 | 2019-05-03 | Cooling head |
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US (1) | US10928142B2 (en) |
EP (1) | EP3564536B1 (en) |
DK (1) | DK3564536T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113286486A (en) * | 2021-04-14 | 2021-08-20 | 陈正刚 | Heat dissipation auxiliary device for communication equipment receiver and heat dissipation method thereof |
Families Citing this family (4)
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US10524386B1 (en) * | 2018-06-12 | 2019-12-31 | Arctic (Hk) Ltd | Water cooler assembly and system |
US10834850B2 (en) * | 2019-01-23 | 2020-11-10 | Dongguan Jianxin Electronic Technology Co., Ltd. | Integrated radiator provided with water chamber, control panel and water pump |
CN111194155B (en) * | 2019-12-18 | 2021-10-12 | 深圳市迅凌科技有限公司 | Water cooling head, water cooling radiator and electronic equipment |
TWM613014U (en) * | 2020-12-15 | 2021-06-11 | 飛宏科技股份有限公司 | Choke structure with water cooling |
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US6894899B2 (en) * | 2002-09-13 | 2005-05-17 | Hong Kong Cheung Tat Electrical Co. Ltd. | Integrated fluid cooling system for electronic components |
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US20170218970A1 (en) * | 2014-10-23 | 2017-08-03 | Sulzer Management Ag | A method of pumping a liquid medium, a centrifugal pump and an impeller therefor |
CN106907348B (en) * | 2015-12-23 | 2021-04-09 | 德昌电机(深圳)有限公司 | Impeller and pump using same |
-
2018
- 2018-09-07 US US16/124,671 patent/US10928142B2/en active Active
-
2019
- 2019-05-03 DK DK19172522.5T patent/DK3564536T3/en active
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Patent Citations (4)
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US20030209343A1 (en) * | 2002-05-08 | 2003-11-13 | Bingler Douglas J. | Pump system for use in a heat exchange application |
US8245764B2 (en) | 2005-05-06 | 2012-08-21 | Asetek A/S | Cooling system for a computer system |
WO2014181984A2 (en) * | 2013-05-10 | 2014-11-13 | Park Dong Sik | Heating element cooling apparatus |
CN203870554U (en) * | 2014-06-04 | 2014-10-08 | 深圳市鑫全盛工贸有限公司 | Water-cooled heat sink |
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CN113286486A (en) * | 2021-04-14 | 2021-08-20 | 陈正刚 | Heat dissipation auxiliary device for communication equipment receiver and heat dissipation method thereof |
Also Published As
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US10928142B2 (en) | 2021-02-23 |
DK3564536T3 (en) | 2023-03-13 |
EP3564536B1 (en) | 2023-01-18 |
US20190339026A1 (en) | 2019-11-07 |
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